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In 2005, the average score on the Mathematics portion of the ACT for males was 21.3 with standard deviation 5.3. The average score on the Mathematics portion of the ACT for females was 20.2 with standard deviation 4.8.
-What affect does increasing the sample sizes have on the center of the distribution?
A) It increases the center of the distribution.
B) It decreases the center of the distribution.
C) It has no affect on the center of the distribution.

Question

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In 2005, the average score on the Mathematics portion of the ACT for males was 21.3 with standard deviation 5.3. The average score on the Mathematics portion of the ACT for females was 20.2 with standard deviation 4.8.
-What affect does increasing the sample sizes have on the center of the distribution?
A) It increases the center of the distribution.
B) It decreases the center of the distribution.
C) It has no affect on the center of the distribution.

Quizplus · Accepted Answer

Increasing the sample size does not affect the center of the distribution, which is represented by the mean. The mean remains the same regardless of sample size.

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